welding tip

基本解释

The simplest way is to feel the tip of the welding torch by hand to check whether gas is following out, if not, check the torch for blockage.
最简单的检查是否有气体送出的方法是用手去感觉焊枪的喷嘴是否有气体流出，检查焊枪的气路是否堵塞。
baike.china.alibaba.com
A computation program has been developed, using a two dimension boundary element method, for calculation of stress strength factor at the welding crackle tip.
反映裂纹尖端附近区域应力场强度的物理量称为应力强度因子。它和裂纹大小、形状以及外应力有关。
If a current with proper intensity has been switched on, the goal of controlling the melting and welding dimension effectively around the crack tip can be obtained.
文中给出的算例表明，适当控制通入的电流强度，可以达到有效控制裂尖熔化区尺寸以及形成焊口的目的。